Aratana Therapeutics, Inc. (NASDAQ GM: PETX) regarding possible breaches of fiduciary duties and other violations of law related to Aratana’s agreement to be acquired by Elanco Animal Health Incorporated. Shareholders of Aratana will receive for 0.1481 shares of Elanco per share of Aratana. To learn more about this investigation and your rights, visit: https://www.rigrodskylong.com/cases-aratana-therapeutics-inc.

The KeyW Holding Corporation (NASDAQ GS: KEYW) regarding possible breaches of fiduciary duties and other violations of law related to the KeyW’s agreement to be acquired by Jacobs Engineering Group Inc. (NYSE: JEC). Shareholders of KeyW will receive for $11.25 in cash for each share of KeyW. To learn more about this investigation and your rights, visit: https://www.rigrodskylong.com/cases-the-keyw-holding-corporation.

Zayo Group Holdings, Inc. (NYSE: ZAYO) regarding possible breaches of fiduciary duties and other violations of law related to Zayo’s agreement to be acquired by affiliates of Digital Colony Partners and EQT Infrastructure IV Fund. Shareholders of Zayo will receive $35.00 in cash for each share of Zayo. To learn more about this investigation and your rights, visit: https://www.rigrodskylong.com/cases-zayo-group-holdings-inc.

If you would like to discuss any of these investigations and your rights cost and obligation free, please contact Seth D. Rigrodsky or Gina M. Serra toll-free at (888) 969-4242 or by e-mail at info@rl-legal.com.